DRI / DIRECTORY / AMANDA KEEN-ZEBERT
Amanda Keen-Zebert Profile Photo
Dr. Amanda Keen-Zebert
Associate Research Professor, Geology

Areas of Interest and Expertise

  • Geochronology
  • Luminescence dating techniques
  • OSL dating
  • Dates and Rates of Earth Surface Processes
  • Fluvial geomorphology
  • Quaternary geology and geomorphology
  • Critical Zone processes
  • Paleoclimate
  • Paleoenvironments
  • Floodplain reworking
  • Channel migration
  • Bedrock channels
  • Landscape Evolution
  • Surface processes

Current Graduate Students

Helen Beeson

Kathleen Rodrigues

Keywords

OSL dating, luminescence, optically stimulated luminescence, thermoluminescence, geochronology, fluvial geomorphology, geomorphology, critical zone, surface processes, landscape evolution, Quaternary research, paleoclimate, paleoenvironment

 

Publications
2019
Davis, L. G., Madsen, D. B., Valdivia, L. B., Higham, T., Sisson, D. A., Skinner, S. M., Stueber, D., Nyers, A. J., Keen-Zebert, A. K., Neudorf, C.M., Cheyney, M., Izuho, M., Iizuka, F., Burns, S. R., Epps, C. W., Willis, S. C., Buvit, I. (2019). Late Upper Paleolithic occupation at Cooper’s Ferry, Idaho, USA shows Americas settled before ~16,000 years ago, Science, 365, 891-897
Bacon, S. N., Bullard, T. F., Keen-Zebert, A. K., Jayko, A. S., Decker, D. L. (2019). Spatiotemporal patterns of distributed slip in southern Owens Valley indicated by deformation of late Pleistocene shorelines, eastern California, Geological Society of America Bulletin, 23 p. 10.1130/B35247.1
2018
Furbish, D. J., Roering, J. J., Keen-Zebert, A. K., Almond, P., Doane, T. H., Schumer, R. (2018). Soil Particle Transport and Mixing Near a Hillslope Crest: 2. Cosmogenic Nuclide and Optically Stimulated Luminescence Tracers, Journal of Geophysical Research: Earth Surface, 123 (5), 1078-1093
Furbish, D., Schumer, R., Keen-Zebert, A. K. (2018). The rarefied (non-continuum) conditions of tracer particle transport in soils, with implications for assessing the intensity and depth dependence of mixing from geochronology, Earth Surface Dynamics, 6 (4), 1169-1202
2017
Keen-Zebert, A. K., Hudson, M., Shepherd, S., Thaler, E. (2017). The effect of lithology on valley width, terrace distribution, and bedload provenance in a tectonically stable catchment with flat-lying stratigraphy, Earth Surface Processes and Landforms, 10.1002/esp.4116
Larkin, Z., Tooth, S., Ralph, T., Duller, G., McCarthy, T., Keen-Zebert, A. K., Humphries, M. (2017). Timescales, mechanisms, and controls of incisional avulsions in floodplain wetlands: Insights from the Tshwane River, semiarid South Africa, Geomorphology, 283, 158-172, 10.1016/j.geomorph.2017.01.021
Beeson, H., McCoy, S., Keen-Zebert, A. K. (2017). Geometric disequilibrium of river basins produces long-lived transient landscapes, Earth and Planetary Science Letters, 475, 34-43, https://doi.org/10.1016/j.epsl.2017.07.010
2016
Nicoll, K., Keen-Zebert, A. K. (2016). Initial Chronological Determinations at an Archaic Site Discovered near Stockton, Utah, Journal of Archaeological Science: Reports, 6, 418-423, 10.1016/j.jasrep.2016.02.026
Rodrigues, K. D., Rink, W. J., Collins, M. B., Williams, T. J., Keen-Zebert, A. K., Lopez, G. I. (2016). OSL Ages of the Clovis, Late Paleoindian and Archaic Components at Area 15 of the Gault Site, Central Texas, U.S.A., Journal of Archaeological Sciences, 7, 94-103, 10.1016/j.jasrep.2016.03.014
Keen-Zebert, A. K., Tooth, S., Stuart, F. (2016). Cosmogenic 3He Measurements Provide Insight on Lithological Controls on Bedrock River Incision and Valley Formation: An Example from the South African Interior, Journal of Geology, 124, 423-434, 10.1086/685506
Beeson, H. W., McCoy, S., Keen-Zebert, A. K. (2016). Drainage Area Exchange Between River Basins Produces Long-Lived Transient Landscapes, Geological Society of America Abstracts with Programs, 48, GSA Annual Meeting: Denver, CO, 10.1130/abs/2016AM-287955
Keen-Zebert, A. K., Granger, D. E., Paces, J. B., Hudson, M. R. (2016). Combined Use of Cosmogenic Nuclide, U-Series Disequilibrium, Paleomagnetism, and Optically Stimulated Luminescence within Fitton Cave to Evaluate the Landscape Evolution of the Buffalo National River, Arkansas, Geological Society of America Abstracts with Programs, 48, GSA Annual Meeting: Denver, CO, 10.1130/abs/2016AM-287955
2015
Keen-Zebert, A. K., Baker, S. E. (2015). Luminescence dating of sediment from sand dunes at Antioch Dunes National Wildlife Reserve, California State University, Stanislaus., Accepted.
Keen-Zebert, A. K., Baker, S. E., Adams, K. D., Bacon, S. N. (2015). Luminescence dating of sediment from beach deposits of the Pleistocene highstand of Owens Lake: DRI, Accepted.
Keen-Zebert, A. K., Baker, S. E. (2015). Luminescence dating results: Trench 2, Anderson Dam, Morgan Hill, CA, l, Accepted.
Keen-Zebert, A. K., Baker, S. E. (2015). Luminescence dating of sediment from the City of San Francisco’s southeast water pollution control plant building 521 replacement project., Accepted.
Keen-Zebert, A. K., Baker, S. E. (2015). Luminescence dating of sediment from the Stockton Bar, Salt Lake City, Utah., Accepted.
Rink, W. J., Thompson, J. W. (Eds.) Keen-Zebert, A. K. (2015). Luminescence, Fluvial Sediments, In Encyclopedia of Scientific Dating Methods, 465-469, Springer-Verlag: Berlin-Heidelberg, 10.1007/978-94-007-6326-5_3-1
2014
Tooth, S., McCarthy, T., Rodnight, H., Keen-Zebert, A. K., Rowberry, M., Brandt, D. (2014). Late Holocene Development of a Major Fluvial Discontinuity in Floodplain Wetlands of the Blood River, Eastern South Africa, Geomorphology, 205, 128-141, 10.1016/j.geomorph.2011.12.045
Keen-Zebert, A. K. (2014). Luminescence Dating of Sediment from Sand Dunes at the San Francisco Peninsula, California, Accepted.
2013
Keen-Zebert, A. K., Tooth, S., Rodnight, H., Duller, G.A.T., Roberts, H. R., Grenfell, M. (2013). Late Quaternary Floodplain Reworking and the Preservation of Alluvial Sedimentary Archives in Unconfined and Confined River Valleys in the Eastern Interior of South Africa, Geomorphology, 185, 54-66, 10.1016/j.geomorph.2012.12.004
2011
Bierman, P., Montgomery, D. (Eds.) Keen-Zebert, A. K., Tooth, S., Grenfell, M. (2011). Floodplain Chronology of the Stillerust Vlei, Mooi River Floodplain Wetland, in Western KwaZulu-Natal, South Africa, In Key Concepts in Geomorphology, Vignettes, Science Education Resource Center, Carleton College: Northfield, MN
Keen-Zebert, A. K., Shepherd, S. (2011). Effects of Urbanization on Stream Morphology in the Illinois River Watershed, AR, In Key Concepts in Geomorphology, Vignettes, Science Education Resource Center, Carleton College: Northfield, MN
2009
Keen-Zebert, A. K., Curran, J. C. (2009). Regional and local controls on the spatial distribution of bedrock reaches in the Upper Guadalupe River, Texas, Geomorphology, 112, 295-305, 10.1016/j.geomorph.2009.06.017
Hayes, R. (Ed.) Keen-Zebert, A. K. (2009). Steel Creek, In Thoreau’s Legacy, American Stories of Global Change, Penguin Classics: Cambridge, MA
2007
Keen-Zebert, A. K. (2007). Channel Response to Precipitation in Urban Catchments: Scull and Mud Creeks in Fayetteville, Arkansas, Physical Geography, 28 (3), 249-260, 10.2747/0272-3646.28.3.249
Conference Proceedings
2019
Neudorf, C.M., Quinn, D., Keen-Zebert, A. K. (2019). SPARROW – An open-source laboratory information management system focused on geochronology, 13th New World Luminescence Dating Workshop (NWLDW): Urbana-Champaign, IL, August 5, 2019-August 7, 2019, Presented.
2017
Rodrigues, K. D., Keen-Zebert, A. K., Huot, S., Adams, K. D. (2017). Testing the suitability of the TL signal for dating volcanic glass, Luminescence and Electron Spin Dating Conference (LED 2017): Cape Town, South Africa, September 11, 2017-September 15, 2017, Accepted.
Rodrigues, K. D., Keen-Zebert, A. K., Huot, S., Adams, K. D. (2017). Testing the potential of thermoluminescence dating of volcanic glass with known-age samples, Geological Society of America: Seattle, October 22, 2017, Accepted.
2016
Larkin, Z., Ralph, T., Tooth, S., Duller, G. A., McCarthy, T. S., Keen-Zebert, A. K., Humphries, M. (2016). Implications of Channel Avulsion for the Structure and Functioning of Semiarid Floodplain Wetlands: Examples from South Africa, INTECOL International Wetlands Conference: Changshu, China, September 19, 2016-September 24, 2016
2015
Keen-Zebert, A. K. (2015). Using OSL to investigate the impact of lithological heterogeneity on sediment preservation in fluvial systems, Annual Meeting of the Association of American Geographers: Chicago, IL, Accepted.
Shepherd, S., Keen-Zebert, A. K. (2015). Heterogeneous lithology and valley width in the Buffalo River watershed, northern Arkansas, Abstracts of the Annual Meeting of the Association of American Geographers: Chicago, IL, Accepted.
Beeson, H. W., McCoy, S., Keen-Zebert, A. K. (2015). Persistent river-basin disequilibrium in a cratonic landscape: Ozark dome, USA, EOS, 96, EOS Transactions: AGU Fall Meeting Supplement: San Francisco, CA, EP41A-0911, Accepted.
2014
Bacon, S. N., Adams, K. D., Bullard, T. F., Keen-Zebert, A. K., Decker, D. L. (2014). Sill Failure and Catastrophic Outburst Floods from Owens Lake, CA: Implications for Latest Pleistocene and Holocene Paleohydrology of the Owens River Drainage Basin, Geological Society of America, Abstracts with Programs, 46 (6), Geological Society of America Annual Meeting: Vancouver British Columbia, October 19, 2014-October 22, 2014, Paper No. 310-7
Keen-Zebert, A. K. (2014). Lithological Controls on Bedrock River Incision and Valley Formation in the Eastern South African Interior, EOS Transactions, 95, AGU Fall Meeting Supplement: San Francisco, CA, Abstract EP53A-3595
Shepherd, S., Keen-Zebert, A. K. (2014). Lithologic Heterogeneity and Variable Valley Width in the Buffalo River Watershed, AR, EOS Transactions, 95, AGU Fall Meeting Supplement, Abstract EP53A-3594
Keen-Zebert, A. K., Baker, S. E. (2014). Comparison of Single- and Multi-Grain Quartz Luminescence Ages from Terraces in the Buffalo National River, Arkansas, 14th International Luminescence and Electron Spin Dating Conference and Workshop: Montreal, Canada
Hendricks, R., Rink, W. J., Mallinson, D., Alexander, C., Keen-Zebert, A. K. (2014). Timing and Emplacement of Ancient Coastal Deposits of Georgia As Determined by ESR Optical Dating: A Work in Progress, Part II, 14th International Luminescence and Electron Spin Dating Conference and Workshop: Montreal, Canada
Keen-Zebert, A. K., Hudson, M., Shepherd, S. (2014). Characterization and Ages of Quaternary River Terraces in the Buffalo National River, Arkansas, South-Central Geological Society of America Regional Meeting: Fayetteville, AR
Shepherd, S., Keen-Zebert, A. K., Hudson, M. (2014). Valley Width and Heterogeneous Lithology in the Buffalo River Watershed, Northern Arkansas, South-Central Geological Society of America Regional Meeting: Fayetteville, AR
Keen-Zebert, A. K., Hudson, M., Shepherd, S. (2014). Post Meeting Field Trip: Quaternary Geology and Geomorphology of the Buffalo National River, Arkansas, South-Central Geological Society of America Regional Meeting: Fayetteville, AR, March 19, 2014
2013
Shepherd, S., Keen-Zebert, A. K., Hudson, M., Turner, K. (2013). Variable Valley Width and Heterogeneous Lithology in the Buffalo National Scenic River, Arkansas, Geological Society of America Annual Meeting Abstracts with Programs, 45 (7), 577, Geological Society of America Annual Meeting: Denver, CO
2012
Keen-Zebert, A. K., Mahan, S. (2012). Equivalent Dose Distributions Demonstrate That Varied Fluvial Transport Processes Are a Major Component in the Construction of Floodplains, New World Luminescence Workshop: Los Angeles, CA
Hendricks, R., Rink, W. J., Mallinson, D., Alexander, C., Keen-Zebert, A. K. (2012). Timing of the Emplacement of Ancient Coastal Deposits of Georgia As Determined by ESR Optical Dating, New World Luminescence Workshop: Los Angeles, CA
Keen-Zebert, A. K., Tooth, S., Rodnight, H., Duller, G. A., Roberts, H., Grenfell, M. (2012). Late Quaternary Floodplain Reworking and the Preservation of Alluvial Sedimentary Archives in the Eastern Interior of South Africa, Meeting of Young Researchers in Earth Sciences V (MYRES V). The Sedimentary Record of Landscape Dynamics: Salt Lake City, UT